How i can implement 2 arrays in tableView - ios

Question

`Hello!
I have a tableview and 2 arrays.
When I switch between tabs the tableview reloads. In the first tab, I click on favorites, change the color and add the data to another array. When switching to the second tab, the color does not change. how can i implement this?
MyCell
protocol CellSubclassDelegate: class {
func gestureTapped(cell: StocksCell)
}
class StocksCell: UITableViewCell {
#IBOutlet weak var logoImageView: UIImageView!
#IBOutlet weak var tickerLabel: UILabel!
#IBOutlet weak var favouriteImageView: UIImageView!{ didSet {
let panGesture = UITapGestureRecognizer(target: self, action: #selector(tapToAddFavourite))
favouriteImageView.addGestureRecognizer(panGesture)
favouriteImageView.isUserInteractionEnabled = true
}
}
#IBOutlet weak var companyNameLabel: UILabel!
#IBOutlet weak var priceLabel: UILabel!
#IBOutlet weak var deltaLabel: UILabel!
var selectedCell = false
weak var delegate: CellSubclassDelegate?
override func awakeFromNib() {
super.awakeFromNib()
}
#objc private func tapToAddFavourite(_ recognizer: UITapGestureRecognizer) {
guard recognizer.state == .ended else { return }
if selectedCell{
favouriteImageView.tintColor = UIColor.lightGray
selectedCell = false
}else{
favouriteImageView.tintColor = UIColor.yellow
selectedCell = true
}
self.delegate?.gestureTapped(cell: self)
}
}
MyController
class StocksViewController: UIViewController, CellSubclassDelegate {
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var stocksLabel: UILabel! { didSet {
let tapGestureStocks = UITapGestureRecognizer(target: self, action: #selector(tapToStocks))
stocksLabel.addGestureRecognizer(tapGestureStocks)
stocksLabel.isUserInteractionEnabled = true
}
}
#IBOutlet weak var favouriteLabel: UILabel!{ didSet {
let tapGestureFavourite = UITapGestureRecognizer(target: self, action: #selector(tapToFavourite))
favouriteLabel.addGestureRecognizer(tapGestureFavourite)
favouriteLabel.isUserInteractionEnabled = true
}
}
fileprivate var stocksData = [StocksModel(n: "VNDX", f: "Vandex, LLC", t: "4 764,6 ₽", tt: "+55 ₽ (1,15%)"), StocksModel(n: "DDD", f: "Dandex, LLC", t: "1 764,6 ₽", tt: "+155 ₽ (1,15%)")]
var favouriteData = [StocksModel]()
let privateIdentifire = "StocksCell"
var isStocksSelected = true
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
}
#objc private func tapToFavourite(_ recognizer: UITapGestureRecognizer) {
guard recognizer.state == .ended else { return }
favouriteLabel.alpha = 1
favouriteLabel.font = favouriteLabel.font.withSize(28)
stocksLabel.alpha = 0.65
stocksLabel.font = stocksLabel.font.withSize(18)
stocksLabel.textAlignment = .center
isStocksSelected = false
tableView.reloadData()
}
#objc private func tapToStocks(_ recognizer: UITapGestureRecognizer) {
guard recognizer.state == .ended else { return }
favouriteLabel.alpha = 0.65
favouriteLabel.font = favouriteLabel.font.withSize(18)
stocksLabel.alpha = 1
stocksLabel.font = stocksLabel.font.withSize(28)
stocksLabel.textAlignment = .left
isStocksSelected = true
tableView.reloadData()
}
}
TABLEVIEW DATASOURCE
extension StocksViewController: UITableViewDataSource{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
let result = isStocksSelected ? stocksData.count : favouriteData.count
return result
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: privateIdentifire, for: indexPath) as! StocksCell
cell.delegate = self
if isStocksSelected{
cell.tickerLabel.text = stocksData[indexPath.row].name
cell.companyNameLabel.text = stocksData[indexPath.row].fullname
cell.priceLabel.text = stocksData[indexPath.row].ticker
cell.deltaLabel.text = stocksData[indexPath.row].tq
}else{
cell.tickerLabel.text = favouriteData[indexPath.row].name
cell.companyNameLabel.text = favouriteData[indexPath.row].fullname
cell.priceLabel.text = favouriteData[indexPath.row].ticker
cell.deltaLabel.text = favouriteData[indexPath.row].tq
}
return cell
}
func gestureTapped(cell: StocksCell) {
guard let indexPath = self.tableView.indexPath(for: cell) else {return}
if cell.selectedCell{
let dataStock = stocksData[indexPath.row]
favouriteData.append(dataStock)
}else{
favouriteData.remove(at: indexPath.row)
}
}
}
TABLEVIEW DELEGATE
extension StocksViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 68
}
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
cell.layer.cornerRadius = 16
}
}

Answer 1

Change the color here:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: privateIdentifire, for: indexPath) as! StocksCell
cell.delegate = self
if isStocksSelected{
favouriteImageView.tintColor = UIColor.lightGray
cell.tickerLabel.text = stocksData[indexPath.row].name
cell.companyNameLabel.text = stocksData[indexPath.row].fullname
cell.priceLabel.text = stocksData[indexPath.row].ticker
cell.deltaLabel.text = stocksData[indexPath.row].tq
}else{
favouriteImageView.tintColor = UIColor.yellow
cell.tickerLabel.text = favouriteData[indexPath.row].name
cell.companyNameLabel.text = favouriteData[indexPath.row].fullname
cell.priceLabel.text = favouriteData[indexPath.row].ticker
cell.deltaLabel.text = favouriteData[indexPath.row].tq
}
return cell
}